| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the |
| * Alliance for Open Media Patent License 1.0 was not distributed with this |
| * source code in the PATENTS file, you can obtain it at |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_TEST_MD5_HELPER_H_ |
| #define AOM_TEST_MD5_HELPER_H_ |
| |
| #include "aom/aom_decoder.h" |
| #include "common/md5_utils.h" |
| |
| namespace libaom_test { |
| class MD5 { |
| public: |
| MD5() { MD5Init(&md5_); } |
| |
| void Add(const aom_image_t *img) { |
| for (int plane = 0; plane < 3; ++plane) { |
| const uint8_t *buf = img->planes[plane]; |
| // Calculate the width and height to do the md5 check. For the chroma |
| // plane, we never want to round down and thus skip a pixel so if |
| // we are shifting by 1 (chroma_shift) we add 1 before doing the shift. |
| // This works only for chroma_shift of 0 and 1. |
| const int bytes_per_sample = |
| (img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1; |
| const int h = |
| plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift |
| : img->d_h; |
| const int w = |
| (plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift |
| : img->d_w) * |
| bytes_per_sample; |
| |
| for (int y = 0; y < h; ++y) { |
| MD5Update(&md5_, buf, w); |
| buf += img->stride[plane]; |
| } |
| } |
| } |
| |
| void Add(const uint8_t *data, size_t size) { |
| MD5Update(&md5_, data, static_cast<uint32_t>(size)); |
| } |
| |
| const char *Get(void) { |
| static const char hex[16] = { |
| '0', '1', '2', '3', '4', '5', '6', '7', |
| '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', |
| }; |
| uint8_t tmp[16]; |
| MD5Context ctx_tmp = md5_; |
| |
| MD5Final(tmp, &ctx_tmp); |
| for (int i = 0; i < 16; i++) { |
| res_[i * 2 + 0] = hex[tmp[i] >> 4]; |
| res_[i * 2 + 1] = hex[tmp[i] & 0xf]; |
| } |
| res_[32] = 0; |
| |
| return res_; |
| } |
| |
| protected: |
| char res_[33]; |
| MD5Context md5_; |
| }; |
| |
| } // namespace libaom_test |
| |
| #endif // AOM_TEST_MD5_HELPER_H_ |